200 1. Find the work done when a non-constant force of F(x) = N is used to move an object from 10 m to 16 m. B i U Font Family - AA- A 9 +V Q 2. A spring whose natural length of 25 cm is stretched to 32.5 cm in length. What is the work done if the spring constant is 2 N/m? B i U Font Family - AA- A 9 +VQ 3. When finding the force of a spring we use Hooke's Law. What is Hooke's Law? O F = kr where k = distance stretched and I = spring constant K = fox where f = spring constant and a = distance stretched OF = 2kx where k = spring constant and > = distance stretched OF = kx where k = spring constant and I = distance stretched A Q 4. Find the work done when a constant force of 100 N is applied to move an object from = = 3 to x = 7 m. B i U Font Family AA- A D F . E . E . 950 Q 5. A spring is 10 cm long when not stretched. If it takes 120 N to stretch it from its resting position of 10 cm to a position of 25 cm, how much work is done to stretch it that far? B U Font Family - AA- A D E . E . E .950 #V